A Study to Evaluate the Effects of Ezetimibe (MK-0653) on the Postprandial (Following a Meal) Lipoprotein Response in Participants With Primary Hypercholesterolemia (High Cholesterol) (MK-0653-072)(COMPLETED)

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Total Cholesterol Concentration of Chylomicron (Sf≥400) Fractions After a Cholesterol-Rich Test Meal [ Time Frame: Immediately prior to consumption of the test meal (baseline) and at 2, 3, 4, and 6 hours after test meal on Day 28 of each treatment period. ]

On each of 2 days prior to the last day of each treatment period, participants consumed 2 large eggs in the evening. On the morning of the final day of each treatment period, fasting participants were given a site-prepared, cholesterol-enriched milkshake that provided 1114 calories of total energy (~44% of calories from fat, ~40% of calories from carbohydrate and ~17% of calories from protein) and 504 mg of cholesterol. The milkshake was consumed over a 15-minute period. Plasma samples were collected immediately prior to consumption of the test meal (baseline) and at 2, 3, 4, and 6 hours afterwards for isolation and analysis of lipoprotein fractions. The geometric mean concentration level was calculated using data obtained at all timepoints.

Total Cholesterol Concentration of Chylomicron-remnant (Sf 60-400) Subfractions After a Cholesterol-Rich Test Meal [ Time Frame: Immediately prior to consumption of the test meal (baseline) and at 2, 3, 4, and 6 hours after test meal on Day 28 of each treatment period. ]

On each of 2 days prior to the last day of each treatment period, participants consumed 2 large eggs in the evening. On the morning of the final day of each treatment period, fasting participants were given a site-prepared, cholesterol-enriched milkshake that provided 1114 calories of total energy (~44% of calories from fat, ~40% of calories from carbohydrate and ~17% of calories from protein) and 504 mg of cholesterol. The milkshake was consumed over a 15-minute period. Plasma samples were collected immediately prior to consumption of the test meal (baseline) and at 2, 3, 4, and 6 hours afterwards for isolation and analysis of lipoprotein subfractions. The geometric mean concentration level was calculated using data obtained at all timepoints.

Original Secondary Outcome Measures ICMJE

Not Provided

Current Other Outcome Measures ICMJE

Not Provided

Original Other Outcome Measures ICMJE

Not Provided

Descriptive Information

Brief Title ICMJE

A Study to Evaluate the Effects of Ezetimibe (MK-0653) on the Postprandial (Following a Meal) Lipoprotein Response in Participants With Primary Hypercholesterolemia (High Cholesterol) (MK-0653-072)(COMPLETED)

Official Title ICMJE

A Randomized, Double-Blind, Placebo-Controlled, 2-Period, Crossover Study to Evaluate the Effects of Ezetimibe on the Postprandial Lipoprotein Response in Patients With Primary Hypercholesterolemia

Brief Summary

A study to evaluate the cholesterol-lowering effects of ezetimibe in participants with primary hypercholesterolemia (high cholesterol) after eating a meal that is high in cholesterol. The primary hypothesis is that treatment with ezetimibe 10 mg/day reduces the cholesterol concentration of the chylomicron-containing Sf≥400 fraction following a cholesterol-enriched test meal.